50.21 Operational Amplifier Specifications
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Standard Operating Conditions (unless otherwise stated) VDD = 3.0V, VCM = 1.5V, CLOAD = 50pF, Unity-Gain mode | |||||||
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| Param No. | Sym. | Characteristic | Min. | Typ. † | Max. | Units | Conditions |
| Operating Conditions | |||||||
| OPA01 | VDD | Supply Voltage Range | 2.0 | — | VDDMAX | V | |
| OPA02 | VIN | Input Voltage Range | -0.3 | — | VDD + 0.3 | V | |
| OPA02A | -0.3 | — | VDD - 0.7 | V | |||
| OPA03* | TON | Turn-On Time | — | 1.3 | — | μs | |
| OPA04* | TCAL | Self-Calibration Time | — | 20 | — | ms | |
| Input Offset | |||||||
| OPA05 | VOS | Input Offset | -3 | ±1 | +3 | mV | T = 25°C, VCM = VDD/2 |
| OPA05A | Input Offset after Self-Calibration | -2 | ±0.5 | +2 | mV | T = Self-Calibration at temperature | |
| OPA06* | VCAL | Calibration Step | — | 0.5 | — | mV | |
| OPA07* | ΔVOS/ΔTA | Drift with Temperature | — | < ±20 | — | μV/°C | |
| OPA08* | CMRR | Common-Mode Rejection Ratio | — | 78 | — | dB | |
| OPA09* | PSRR | Power Supply Rejection Ratio | — | 63 | — | dB | |
| Gain | |||||||
| OPA10* | AOL | Open-Loop Gain | — | 74 | — | dB | |
| OPA11* | ACL | Gain Accuracy with Internal Resistor Ladder (2,3) | 1.01 | — | 1.11 | V/V | GSEL = 'b000 |
| OPA11A* | 1.08 | — | 1.19 | V/V | GSEL = 'b001 | ||
| OPA11B* | 1.25 | — | 1.38 | V/V | GSEL = 'b010 | ||
| OPA11C* | 1.83 | — | 2.05 | V/V | GSEL = 'b011 | ||
| OPA11D* | 2.4 | — | 2.72 | V/V | GSEL = 'b100 | ||
| OPA11FE | 3.55 | — | 4.07 | V/V | GSEL = 'b101 | ||
| OPA11F* | 6.94 | — | 8.14 | V/V | GSEL = 'b110 | ||
| OPA11G* | 13.49 | — | 16.31 | V/V | GSEL = 'b111 | ||
| Output | |||||||
| OPA12* | VO | Output Voltage Swing | [0.1] | — | [VDD - 0.1] | V | ILOAD = ±1 mA(1) |
| OPA13* | ISC | Short-Circuit Sourcing Current | — | -25 | — | mA | |
| OPA13A* | Short-Circuit Sinking Current | — | 30 | — | mA | ||
| AC Response | |||||||
| OPA14* | GBWP | Gain Bandwidth Product | — | 5.5 | — | MHz | |
| OPA15* | SRRISE | Slew Rate, Rise | — | 6 | — | V/μs | |
| OPA16* | SRFALL | Slew Rate, Fall | — | 6 | — | V/μs | |
| OPA17* | PM | Phase Margin | — | 88 | — | Degrees | |
| Noise | |||||||
| OPA18* | Eni | Input Noise Voltage | — | 180 | — | μVPP | ƒ = 0.1 - 10 Hz |
| OPA19* | eni | Input Noise Voltage Density | — | 100 | — | nV/√(Hz) | ƒ= 1 kHz |
| Resistor Ladder | |||||||
| OPA20* | RLAD | Resistor Ladder Unit Resistance(2) | — | — | 4 | kΩ | |
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* These parameters are characterized but not tested. † Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested. Note:
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